Here is another set of small optical illusion and visual perception related images you can link to from your own website / profile page.
Pic #23 of 25(back to thumbnails)
Poultry puzzled by the Poggendorff illusion, and who shall blame them?
Previous
Next
In case you missed them you can still see the second perception pictures as well as the first set of illusion pictures.
i dont understand
Me neither